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Table 2 Baseline characteristics by group and overall

From: Evaluating the effectiveness of organisational-level strategies with or without an activity tracker to reduce office workers’ sitting time: a cluster-randomised trial

  Group ORG Group ORG + Tracker All participants
  n = 87a n = 66a n = 153a
Male 60 % (52) 47 % (31) 54 % (83)
Age, years 40.0 ± 8.0 37.6 ± 7.8 38.9 ± 8.0
BMI, kg/m2 25.0 ± 3.4 24.1 ± 3.4 24.6 ± 3.4
Normal weight 54 % (37b) 74 % (37) 63 % (74)
Overweight 37 % (25) 16 % (8) 28 % (33)
Obese 9 % (6) 10 % (5) 9 % (11)
University education 83 % (67) 86 % (54) 84 % (121)
1.0 Full-time equivalent 95 % (77) 92 % (59) 94 % (136)
Job category
  Manager 52 % (45) 64 % (42) 57 % (87)
  Senior leader 16 % (14) 6 % (4) 12 % (18)
  Other 32 % (28) 30 % (20) 31 % (48)
Smoker 10 % (8) 9 % (5) 10 % (13)
Weekday work hours/dayc 9.9 ± 1.2 9.6 ± 1.0 9.8 ± 1.1
Musculoskeletal    
  Upper body problemsd 62 % (48) 64 % (37) 63 % (85)
  Back problemsd 55 % (42) 59 % (34) 56 % (76)
  Lower extremity problemsd 38 % (29) 26 % (15) 33 % (44)
Activity variables    
Work hours    
  Sitting (min/10 h workday) 440.8 ± 59.6 453.0 ± 55.9 446.0 ± 58.2
  Prolonged sitting (min/10 h workday) 246.3 ± 81.6 254.8 ± 89.8 249.9 ± 85.0
  Time between sitting bouts (min) 5.9 ± 2.8 5.1 ± 4.5 5.6 ± 3.6
  Standing (min/10 h workday) 109.1 ± 48.5 100.2 ± 50.8 105.3 ± 49.5
  Stepping (min/10 h workday) 50.1 ± 16.6 46.8 ± 15.1 48.7 ± 16.0
  Step count (number of steps/10 h workday) 2350.0 ± 791.5 2201.2 ± 748.3 2286.8 ± 774.3
Overall hours    
  Sitting (min/16 h day) 618.4 ± 71.7 627.0 ± 65.2 622.1 ± 68.9
  Prolonged sitting (min/16 h day) 321.8 ± 89.8 333.3 ± 96.9 326.7 ± 92.8
  Time between sitting bouts (min) 7.3 ± 2.4 6.6 ± 1.9 7.0 ± 2.2
  Standing (min/16 h day) 229.8 ± 57.8 216.9 ± 56.3 224.3 ± 57.4
  Stepping (min/16 h day) 111.8 ± 29.0 116.1 ± 26.3 113.7 ± 27.9
  Step count (number of steps/16 h day) 4886.7 ± 1444.3 5160.0 ± 1410.0 5004.0 ± 1431.3
Workplace variables
 Job performance scalee 7.5 ± 0.9 7.7 ± 0.9 7.6 ± 0.9
 Job controle 6.8 ± 1.8 7.0 ± 1.9 6.8 ± 1.8
 Work satisfactione 6.3 ± 1.4 6.6 ± 1.6 6.4 ± 1.5
Health variables
 Stresse 6.6 ± 2.1 6.2 ± 2.5 6.5 ± 2.3
 Physical health quality of lifef 50.9 ± 8.0 51.8 ± 6.8 51.3 ± 7.5
 Mental health quality of lifef 44.0 ± 11.9 46.1 ± 10.3 44.9 ± 11.2
  1. Data are % (n) or mean ± SD
  2. aAll n = 87 Group ORG, n = 66 Group ORG + Tracker (sex and job category); n = 86 Group ORG (weekday work hours/day), n = 81 Group ORG (FTE, education), n = 80 Group ORG (age), n = 64 Group ORG + Tracker (FTE), n = 63 Group ORG + Tracker (weekday work hours/day, age, education); n = 77 Group ORG, n = 58 Group ORG + Tracker (musculoskeletal items; smoking status); n = 74 Group ORG, n = 55 Group ORG + Tracker (job control); n = 72 Group ORG, n = 56 Group ORG + Tracker (quality of life); n = 75 Group ORG, n = 56 Group ORG + Tracker (other questionnaire data); n = 68 Group ORG, n = 50 Group ORG + Tracker (BMI); n = 85 Group ORG, n = 64 Group ORG + Tracker (activity data); n = 84 Group ORG, n = 62 Group ORG + Tracker (work activity data)
  3. bincludes one borderline underweight participant
  4. cAverage weekday work hours were calculated from baseline work diaries
  5. dThe 36-item version of the Nordic Musculoskeletal Questionnaire [39], modified to measure problems in the last month. Issues identified as causing trouble were collapsed into categories of upper body problems (e.g., neck, shoulders, elbows, and wrists/hands), back problems (e.g., upper back, lower back, and hips/thighs/buttocks) or lower extremity problems (e.g., knees, and ankles/feet)
  6. e1 to 10 scale, higher numbers indicate more favourable workplace scores, or greater stress levels
  7. f1 to 100 scale, higher numbers indicate better quality of life